The team proposes a new reversed ISP network (RISPNet) [1]} to achieve efficient RGB to RAW mapping. This is a novel encoder-decoder network with a third-order attention (TOA) module. Since attention [2]}, [3]} facilitates the complex trade-off between achieving spatial detail and high level contextual information, it can help to recover high dynamic range RAW and thus making the whole recovery process a more manageable step. The architecture of RISPNet is illustrated in Figure REF , it consists of multi-scale hierarchical design incorporating the basic RISPblock, which is a residual attention block combining layer normalization, depth-wise convolutions and channel-spatial attention [3]}, [5]}.
